CN109691221A - External packet data networks are bypassed in being moved to mobile communication - Google Patents
External packet data networks are bypassed in being moved to mobile communication Download PDFInfo
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- CN109691221A CN109691221A CN201780054509.6A CN201780054509A CN109691221A CN 109691221 A CN109691221 A CN 109691221A CN 201780054509 A CN201780054509 A CN 201780054509A CN 109691221 A CN109691221 A CN 109691221A
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- gateway
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0247—Traffic management, e.g. flow control or congestion control based on conditions of the access network or the infrastructure network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/005—Transmission of information for alerting of incoming communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/24—Interfaces between hierarchically similar devices between backbone network devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/14—Backbone network devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
Abstract
First gateway (P-GW, 355) uplink packet for being addressed to target UE (320) is received from source user equipment (315), and identifies the pairing between source user equipment (315) and target UE (320).First gateway (355) is by being directly routed to target UE for received uplink packet around the 2nd P-GW (370) of internet.
Description
Technical field
The disclosure relates generally to wireless communication systems, and relate more specifically to the user equipment in wireless communication system
Between communication.
Background technique
Wireless communication system includes providing one or more base station (its being wirelessly connected to user equipment by air interface
ENodeB is referred to as in LTE).Base station is connected to the core network according to Internet protocol (IP) transmission grouping, such as
Evolution block core (EPC) network.Core network is connected to for the transmission grouping between the user equipment in different location
External packet data networks, such as internet.For example, user equipment can be attached to core network, and in the internet
It realizes and is configured as relaying the server registration from the received data grouping of core network.Then, user equipment can be through
Voice or data connection are established by internet and other users equipment.The mistake for establishing connection can be slowed down to Internet server registration
Journey, and additional cost may be brought to user or application developer.Some user equipmenies are configured for equipment and arrive
Equipment (D2D) communication, D2D communication allow user equipment that the radio realized by different user devices is used to pass through interface and other
User equipment direct communication.The communication path participated between the user equipment of D2D communication bypasses base station, core network and Yin Te
Net, and it is therefore in emergency circumstances particularly useful when these entities are unavailable.However, and not all user equipment all matched
Set for D2D communicate, and be directed to the user equipment separated with one kilometer or farther distance, D2D communication be it is unrealistic or
It is impossible.
Detailed description of the invention
By reference to attached drawing, the disclosure may be better understood, and its numerous feature and advantage is for art technology
It is obvious for personnel.Make that similar or identical project is presented with like reference characters in different figures.
Fig. 1 is the block diagram of wireless communication system in accordance with some embodiments.
Fig. 2 is the pairing user equipment in accordance with some embodiments at packet data node (PDN) gateway (PGW)
Between establish grouping routing message flow figure.
Fig. 3 is the wireless communication system in accordance with some embodiments for supporting to communicate between PGW between mobility management entity (MME)
The block diagram of system.
Fig. 4 A and 4B show in accordance with some embodiments for using matching at the PDN Gateway communicated between PGW between MME
Figure to the message flow for establishing grouping routing between user equipment.
Fig. 5 is the block diagram of the wireless communication system in accordance with some embodiments including MME and PGW, and the MME and PGW can
Along the routing packets between the subscriber devices of the communication path around one or more external packet data networks.
Fig. 6 is instruction in accordance with some embodiments for along the communication path routing point around external packet data networks
The figure of the data structure of the pairing of the user equipment of group.
Specific embodiment
Gateway (such as packet data node (PDN) gateway PGW) can be in the following manner along around external packet number
Source user equipment and target UE are effectively connected according to the communication path of network (such as internet): reception is addressed to
The uplink packet of target UE identifies the pairing between source user equipment and target UE, and will receive
Uplink packet be converted to downlink packets, to be transferred to target UE.Source user equipment passes through transmission packet
The identifier for including target UE (such as uniquely identifies subscriber identity module (SIM) card in target UE
MSISDN) request come initiate for establishes match pairing process.The request is by knowing the active state of target UE
Mobility management entity (MME) receive.If target UE is in idle condition, MME uses instruction pairing request
Paging message page target UE.MME selects to serve the gateway of target UE, and will identify source user
Equipment and the information of target UE are transferred to gateway to initiate pairing process.In some variations, source user equipment and mesh
User equipment is marked to be serviced by different MME, SGW or PGW.In which case it is possible to use communication link between MME or between PGW
To match source user equipment and target UE.
Once source user equipment and target UE are matched in gateway, gateway can be modified and be set from source user
The format of the standby uplink packet for receiving and being addressed to target UE is to create for from gateway to target user
The downlink packets of the transmission of equipment.Once establishing pairing, gateway can also receive uplink from target UE
Grouping, and convert them to be addressed to the downlink packets of source user equipment can be in two directions to communicate
It carries out.If source user equipment and target UE are serviced by different MME, SGW or PGW, communicating between PGW can be used for
Data grouping is routed between the source user equipment and target UE of pairing.
Fig. 1 is the block diagram of wireless communication system 100 in accordance with some embodiments.Wireless communication system 100 includes for leading to
It crosses air interface 125,130 and the base station 105,110 being wirelessly connected is provided to user equipment 115,120.Base station 105,110 and user
Some embodiments of equipment 115,120 are according to long term evolution (LTE) standard defined by third generation cooperative partner program (3GPP)
It is operated.However, the other embodiments of base station 105,110 or user equipment 115,120 can be according to for supporting wirelessly to connect
The other standards and/or agreement connect are operated.Such as eNodeB, base station router, family's base can be used in base station 105,110
Station router, access point access other terms such as network to refer to.User equipment 115,120 can be used such as mobile unit,
Other terms such as mobile device, subscriber station, wireless transmission/receive unit, wireless telecom equipment, smart phone refer to.
Base station 105,110 is connected to the mobility management entity in such as core network 140 of evolution block core (EPC)
(MME)135.MME 135 is responsible for calling user device 115,120 in idle mode, and activation and deactivation is supported to be used for
The radio bearer of information is transmitted by air interface 125,130.MME 135 be also responsible for certification user equipment 115,120 and eventually
Only Non-Access Stratum (NAS) signaling between core network and user equipment 115,120.NAS signaling be used for user equipment 115,
Transmission control information between 120 and MME 135.NAS agreement support user equipment 115,120 mobility and for establish and
Maintain the session management mistake of Internet protocol (IP) connection between other gateways in user equipment 115,120 and core network
Journey.NAS agreement is also used for integrity protection and the encryption of NAS signaling message to support secure connection.
MME 135 can select gateway 145 for user equipment 115,120.The routing of gateway 145 and forwarding user
Data grouping, and the mobility anchor during being the switching between such as base station of base station 105,110 in user plane.
When user equipment 115,120 is in idle mode, gateway 145 terminates downlink data path, and arrives in data
When up to be transferred to Idle subscriber devices 115,120, the paging of Idle subscriber devices 115,120 is triggered.
User equipment 115,120 is connected to packet data node (PDN) gateway 150, provide core network with such as because
Connection between the external packet data networks of special net 155.Therefore, PDN Gateway 150 is that Packet Service is leaving core network simultaneously
And exit point when entering external packet data networks and Packet Service core network and leave external packet number entering
Inlet point when according to network.Although depicting single PDN Gateway 150 in Fig. 1, user equipment 115,120 can be more than
One PDN Gateway is maintained simultaneously or is concurrently connected, to access multiple external packet data networks.
Home subscriber servers (HSS) 160 are connected to MME 135.HSS includes user's correlation and subscription related information
Database.Some embodiments of HSS 160 include the information that mark is serving the PDN Gateway of user equipment 115,120.Example
Such as, the mark for serving the PDN Gateway (including PDN Gateway 150) of user equipment 115,120 can store by user equipment
115, in the database of 120 globally unique identifier (such as MSISDN identifier of user equipment 115,120) index.Such as this
Used herein, term " globally unique identifier " should be understood as that reference uniquely identifies the whole world in the whole world and corresponds to equipment
Character, number or other symbols mark sequence.HSS 160 is also responsible for the mobile management of user equipment 115,120, calling
With session establishment support, user authentication and access mandate.
MME 135 is configured as establishing pairing between user equipment 115,120, which can be used for via PDN net
The routing packets between user equipment 115,120 of pass 150, without transferring the packet to external packet data networks 155.For example,
MME 135 can receive the first request to match source user equipment 115 and target UE 120.This first
Request can be NAS signaling message, which includes information (such as user equipment of marked targeted customer equipment 120
120 globally unique identifier).MME 135 is transmitted to PDN Gateway 150 (via gateway 145) to by source user equipment
115 the second requests matched with target UE 120.PDN Gateway 150 can transmit confirmation and have been set up pairing
Message, and in response to receiving the message, it includes being provided by PDN Gateway 150 that MME 135 is transmitted to user equipment 115,120
Pairing identifier message.For example, MME 135 can transmit NAS signaling message to user equipment 115,120.Pairing mark
Symbol is used as the index of the matching table stored by PDN Gateway 150.
Once establishing the pairing between user equipment 115,120, PDN Gateway 150 can be along around external packet
The communication path of data network 155 routing packets between user equipment 115,120.For example, PDN Gateway 150 can be used from source
Family equipment 115 receives the uplink packet for being addressed to target UE 120.PDN Gateway 150 uses uplink packet
In information (such as pairing identifier) identify the pairing between source user equipment 115 and target UE 120.Then,
PDN Gateway 150 can route the received uplink packet of institute on around the communication path of external packet data networks 155
To target UE 120.For example, PDN Gateway 150, which can be converted to received uplink packet, is transferred to target user
The downlink packets of equipment 120.External packet data can also be being bypassed from the received uplink packet of user equipment 120
User equipment 115 is routed on the communication path of network 155.
As used in this article, term " uplink packet " refers to received from user equipment 115,120, not yet
The grouping of external packet data networks is transferred to by the corresponding gateway in core network.Therefore, when uplink packet along from
To when the transmission of the communication path of base station 105, MME 135 and SGW 145 and PGW 150, grouping is referred to as user equipment 115
Uplink packet.As used in this article, term " downlink packets " refers to and receives from external packet data networks
And the grouping of user equipment is transmitted to by corresponding core network.Therefore, when grouping along in core network 140 from PGW
150 to SGW 145, MME 135, base station 105,110 and leading to by air interface 125,130 to user equipment 115,120
When believing path transmission, grouping is referred to as downlink packets.
Fig. 2 is to establish grouping routing between the pairing user equipment in accordance with some embodiments at PDN Gateway
The figure of message flow 200.Message flow 200 show the first user equipment and second user equipment (UE1, UE2), MME, SGW and
The message transmitted between PGW and the movement being executed by it.Therefore, the wireless communication system that message flow 200 can be shown in Fig. 1
It is realized in 100 some embodiments.
First user equipment initiates message by transmitting the request 201 to being matched with second user equipment to MME
Stream 200.Some embodiments of request 201 are transmitted as NAS signaling message, which includes the finger of pairing request
Show the globally unique identifier of symbol and second user equipment, such as MSISDN.NAS signaling message can also include that the first user sets
Standby globally unique identifier.In the shown embodiment, second user equipment is in idle mode, and MME is able to use and deposits
The information stored up in MME determines that second user equipment is in idle mode.MME is by transmitting paging message to second user equipment
202 come in response to request 201.Some embodiments of paging message 202 are transmitted as NAS signaling, which includes paging
The indicator associated with pairing request of message 202.Second user equipment is in response to receiving paging message 202 and from idle mould
Formula is transformed into activity pattern, and is used to indicate it to MME transmission and wakes and can be used for and the first user equipment carries out
The message 203 of pairing.Some embodiments of message 203 are transmitted as NAS signaling, which includes setting with the first user
The standby service request matched.In the case where second user equipment has been in activity pattern, MME and second user equipment
The exchange of message 202,203 can be bypassed.Then, MME transmission is to request the message 204 of the pairing between UE1 and UE2 (all
Such as NAS message).UE2 can use that (it can also be with to confirm message 206 that it receives to the request matched with UE1
It is NAS message) it is responded.
MME creates or modifies the pairing between the first user equipment and second user equipment to request to SGW transmission
Message 208.Some embodiments of MME are selected from the table of the packet data network of the first user equipment connection (and corresponding PGW)
Select PGW.In response to receiving message 208, SGW creates or modifies the first user equipment and the second use to request to PGW transmission
The message 210 of pairing between the equipment of family.PGW is created and is matched in response to receiving message 210, for example, by by the first user
The globally unique identifier of equipment and the globally unique identifier of second user equipment are stored in by the table of pairing identifier index
In.Then, PGW is to SGW transmission to confirm the creation of requested pairing or the message 212 of modification.Disappear in response to receiving
212, SGW is ceased to MME transmission to confirm the creation of requested pairing or the message 214 of modification.Message 208,210,212,
214 some embodiments are General Packet Radio Service (GPRS) tunnel protocol (GTP) signals, and such as GTP pairing modification is asked
Seek/response message.Message 208,210,212,214 may include such as globally unique identifier of the first user equipment and second
The information of the globally unique identifier of user equipment.The information in GTP message 208,210,212,214 can be used in SGW and PGW
Carry out distributive pairing identifier, which, which is marked at PGW, identifies matching between the first user equipment and second user equipment
It is right.The tunnel endpoint identifier of the first user equipment and second user equipment can be used in some embodiments of SGW and PGW
(TEID) the first user equipment and second user equipment and its associated carrying are uniquely identified.Then, which can be with
For routing uplink packet between the first user equipment and second user equipment of pairing, as discussed in this article.
In response to receiving message 214, MME is transmitted to establish institute at PGW to the first notification of user equipment
The message 216 of the pairing of request.MME also transmits requested to have established at PGW to second user equipment notice
The message 218 of pairing.Some embodiments of message 216,218 are NAS signaling message, which includes unpaired message
(such as globally unique identifier of the globally unique identifier of the first user equipment or second user equipment).Therefore, in frame 220
Place establishes the pairing between the first user equipment and second user equipment.
Once establishing pairing, PGW can be based on pairing come the road between the first user equipment and second user equipment
External packet data networks by being grouped, without transferring the packet to such as internet.For example, the first user equipment is passed to SGW
Defeated ul data packet 222.Ul data packet 222 can be transmitted in GTP-U grouping, GTP-U grouping packet
GTP header is included, which includes the TEID of the first user equipment, and in some embodiments, is included at PGW and identifies
The pairing identifier of pairing between first user equipment and second user equipment.SGW by ul data packet forward (
At arrow 224) PGW is arrived, PGW is identified between the first user comment and second user equipment using TEID (or pairing identifier)
Pairing.It is matched in response to mark, PGW is bypassed uplink data packet transmission to external packet data networks.On the contrary,
Uplink packet conversion (at frame 226) is the downlink data packet for being addressed to second user equipment by PGW.Example
Such as, PGW can modify the format of the GTP header of ul data packet to create downlink data packet.Then, PGW
Downlink data packet 228 is transferred to SGW, SGW uses downlink data packet forwarding (at arrow 230) to second
Family equipment.PGW can also receive ul data packet from second user equipment, and be based on being included in uplink number
The first user equipment is routed them to according to the TEID (or pairing identifier) of the second user equipment in the header of grouping.
Fig. 3 is the block diagram of the wireless communication system 300 in accordance with some embodiments for supporting to communicate between PGW between MME.Wirelessly
Communication system 300 includes base station 305,310, wirelessly to be connected by air interface 325,330 to the offer of user equipment 315,320
It connects.Some embodiments of base station 305,310 and user equipment 315,320 are defined according to by third generation cooperative partner program (3GPP)
Long term evolution (LTE) standard operated.However, the other embodiments of base station 305,310 or user equipment 315,320 can be with
According to for supporting that the other standards being wirelessly connected or agreement are operated.
Wireless communication system 300 is different from wireless communication system 100 shown in FIG. 1, because of base station 305,310 and corresponding
User equipment 315,320 is connected to different external packet data networks 335,340, these external packet data networks 335,
340 can interconnect to promote the communication between base station 305,310 or user equipment 315,320.Base station 305 by MME 345,
SGW 350 and PGW 355 are connected to external packet data networks 335.Base station 310 passes through MME 360, SGW 365 and PGW 370
It is connected to external packet data networks 340.Interface 375 between the MME between MME 345 and MME 360 for communicating.Interface 380
For being communicated between the PGW between PGW 355 and PGW 365.MME 345 is also connected to HSS 385.Some implementations of MME 360
Example may be coupled to HSS (not shown in figure 1).
MME 345,360 be configured as between user equipment 315,320 establish pairing, the pairing can be used for via
The routing packets between user equipment 315,320 of PDN Gateway 355,370, without transferring the packet to external packet data networks
335,340.For example, MME 345 can receive to source user equipment 315 and target UE 320 are matched the
One request.First request can be NAS signaling message, which includes the information of marked targeted customer equipment 320
(such as globally unique identifier of target UE 320).It includes globally unique mark that MME 345 can be transmitted to HSS 385
The request for knowing symbol, positions HSS 385 and provides MME 360 associated with target UE 320 or PDN net
Close 370 mark.MME 345 can be communicated by interface 375 with MME 360 with to target user 320 transmit pairing request (or
Paging message).MME 345 can also be transmitted to PDN Gateway 355 (via gateway 350) to by source user equipment 315 with
The second request that target UE 320 is matched.PDN Gateway 355 can transmit the message that confirmation pairing has built up, and
And in response to receiving the message, it includes the pairing mark provided by PDN Gateway 355 that MME 345 is transmitted to user equipment 315,320
Know the message of symbol.The TEID matched in the TEID of identifier or source user equipment 315 or target UE 320 can
For use as the index of the matching table stored by PDN Gateway 355.
Once establishing the pairing between user equipment 315,320, PDN Gateway 355 can be along around external packet
The communication path of data network 335,340 routing packets between user equipment 315,320.For example, PDN Gateway 355 can be from
Source user equipment 315 receives the uplink packet for being addressed to target UE 320.PDN Gateway 355 uses uplink
Information in grouping identifies the pairing between source user equipment 315 and target UE 320.Then, 355 energy of PDN Gateway
It is enough that received uplink packet is routed to target user on around the communication path of external packet data networks 335,340
Equipment 320.For example, uplink packet can be converted to downlink packets by PDN Gateway 355, and passing through interface 380 will
Downlink packets are routed to PDN Gateway 370, and PDN Gateway 370 is via SGW 365, MME 360 and base station 310 by downlink
Grouping is routed to user equipment 320.
Fig. 4 A and 4B show in accordance with some embodiments for being matched at PDN Gateway using being communicated between MME between PGW
Pair user equipment between establish grouping routing message flow 400 figure.Message flow 400 show by corresponding MME1 and
It is passed between MME2, SGW1 and SGW2 and the first user equipment and second user equipment (UE1, UE2) of PGW1 and PGW2 service
Defeated message and the movement being executed by it.Therefore, message flow 400 can wireless communication system 300 shown in fig. 3 it is some
It is realized in embodiment.
First user equipment initiates message by transmitting the request 402 to being matched with second user equipment to MME1
Stream 400.Some embodiments of request 402 are transmitted as NAS signaling message, which includes the finger of pairing request
Show the globally unique identifier of symbol and second user equipment, such as MSISDN.NAS signaling message can also include that the first user sets
Standby globally unique identifier.In response to receiving request 402, MME1 transmits mobile node identification request 404 to HSS.Request
404 some embodiments are transmitted as Diameter signaling message, and Diameter signaling message includes second user equipment
Globally unique identifier.HSS obtained using globally unique identifier mark MME2 associated with second user equipment or
The information of PGW2.The information obtained by HSS returns to MME1 in Diameter signaling message 406.
The message 408 that MME1 is matched to MME2 transmission request with second user equipment.In the shown embodiment, MME2
The information that is stored in MME2 is able to use to determine that second user equipment is in idle mode.MME2 is passed to second user equipment
Defeated paging message 410.Some embodiments of paging message 410 include the indicator of pairing request.Second user equipment in response to
It receives paging message 410 and is transformed into activity pattern from idle mode, and to MME2 transmission to indicate that it wakes
And the message 412 that can be used for being matched with the first user equipment.Some embodiments of message 412 are passed as NAS signaling
Defeated, which includes the service request matched with the first user equipment.Movable mold has been in second user equipment
In the case where formula, MME2 and second user equipment can be around the exchanges of message 410,412.Then, MME2 and UE2 can be exchanged
Message 414 (it can be NAS message) is to request and confirm the receiving of the pairing between UE1 and UE2.
In the shown embodiment, second user equipment establishes the pairing with PGW2 in response to exchange message 414.MME2 to
SGW2 transmission is to request creation or modify the message 416 of the pairing between the first user equipment and second user equipment.MME2
Some embodiments from the packet data network of second user equipment connection (and corresponding PGW) table in select PGW2.Response
In receiving message 416, SGW2 to PGW2 transmission to request to create or modify the first user equipment and second user equipment it
Between pairing message 418.PGW2 is created and is matched in response to receiving message 418, for example, by by the first user equipment
The globally unique identifier of globally unique identifier and second user equipment is stored in the table by pairing identifier index.PGW1
And both PGW2 identify the pairing between the first user equipment and second user equipment using identical pairing identifier.PGW2
To SGW2 transmission to confirm the creation of requested pairing or the message 420 of modification.In response to receiving message 420, SGW2
To MME2 transmission to confirm the creation of requested pairing or the message 422 of modification.Message 412,414,416,418,420,
422 some embodiments are NAS signal, such as NAS pairing modification requests/response messages.Message 412,414,416,418,
420,422 may include such as globally unique identifier of the first user equipment and second user equipment globally unique identifier
Information.
In response to receiving message 422, MME2 transmission to second user equipment notice at PGW2 to have established
The message 424 of requested pairing.Some embodiments of message 424 are NAS signaling message, which includes pairing
Information (such as globally unique identifier of the globally unique identifier of the first user equipment or second user equipment).MME2 is also passed
It is defeated to MME1 notice MME2 completed a part of its signaling to establish the message 426 of pairing.Some realities of message 426
The TEID that example includes PGW2 is applied, which can be used to transmit message to PGW2 from PGW1.
In response to receiving message 426, MME1 is to SGW1 transmission to request to create or modify the first user equipment and the
The message 428 of pairing between two user equipmenies.Some embodiments of MME1 connect from the packet data network of the first user equipment
It connects in the table of (and corresponding PGW) and selects PGW1.In response to receiving message 428, SGW1 is created to PGW1 transmission to request
Or the message 430 of the pairing between the first user equipment of modification and second user equipment.PGW1 in response to receiving message 430 and
Creation pairing, for example, by by the globally unique identifier of the globally unique identifier of the first user equipment and second user equipment
Symbol is stored in the table by pairing identifier index.Both PGW1 and PGW2 identify the first use using identical pairing identifier
Pairing between family equipment and second user equipment.PGW1 transmission is to the pairing of PGW2 notice via the message of PGW1 creation
432.Message 432 is addressed using the PGW2 TEID for receiving message 434.PGW2 by PGW1 transmit message 434 come
The reception of confirmation message 432, PGW1 is to SGW1 transmission to confirm the creation of requested pairing or the message 436 of modification.It rings
Ying Yu receives message 436, and SGW1 is transmitted to establish requested match at PGW1 to the first notification of user equipment
Pair message 438.Message 428,430,432,434,436,438,440 may include the globally unique of such as the first user equipment
The information of the globally unique identifier of identifier and second user equipment.
The pairing between the first user equipment and second user equipment is established in frame 442.First user equipment and second is used
The foundation (442) of pairing between the equipment of family may include exchanging message between MME1 and MME2 to match to confirm to have built up
To with the routing packets between the first user equipment and second user equipment.Between first user equipment and second user equipment
The foundation (at 442) of pairing, which can also be included between PGW1 and PGW2, exchanges message to confirm and have built up pairing the
Routing packets between one user equipment and second user equipment.
Once establishing pairing, PGW1 and PGW2 can be based on pairings come in the first user equipment and second user equipment
Between routing packets, without transferring the packet to corresponding external packet data networks.For example, the first user equipment is passed to SGW1
Defeated ul data packet 444.Ul data packet forwarding (at arrow 446) is arrived PGW1 by SGW1, and PGW1 is used
GTP-U TEID value identifies the pairing between the first user equipment and second user equipment.It is matched in response to mark, PGW is bypassed
By uplink data packet transmission to external packet data networks.On the contrary, PGW converts uplink packet (in frame 448
Place) it is the downlink data packet for being addressed to second user equipment.For example, PGW can modify ul data packet
Header format to create downlink data packet.Then, downlink data packet 450 is transferred to PGW2 by PGW.Base
In the pairing identified, downlink data packet transmission (at arrow 452) is arrived SGW2 by PGW2, and SGW2 is by downlink number
Second user equipment is arrived according to packets forwarding (at 454).PGW2 can also receive uplink data point from second user equipment
Group, and the first user is routed them to based on the pairing identifier in the header for being included in ul data packet and is set
Standby (via PGW1).
Fig. 5 is the block diagram of the wireless communication system 500 in accordance with some embodiments including MME 505 and PGW 510, MME
505 and PGW 510 can come along the communication path around one or more external packet data networks user equipment 515,
Routing packets between 520.Wireless communication system 500 further includes for supporting and the base of the wireless communication of user equipment 515,520
Stand 525,530.In the shown embodiment, both base stations 525,530 are connected to MME 505.However, in other embodiments, base
Stand 525,530 may be coupled to from the different MME of identical or different PGW communication, to access different external packet data nets
Network, as discussed in this article.
MME 505 include be used for transmission and receive such as with the signal of the signal exchanged of 525,530 or PGW of base station 510
Transceiver 535.Transceiver 535 can be implemented as single integrated circuit (for example, using single ASIC or FPGA), or be embodied as
The system on chip (SOC) of disparate modules including the function for realizing transceiver 535.MME 505 further includes 540 He of processor
Memory 545.Processor 540 is for executing the instruction being stored in memory 545 and storing information in memory 545
(result such as executed instruction).Some embodiments of memory 545 include serviced by MME 505 user equipment (such as with
The table 550 of family equipment 515,520) globally unique identifier (such as MSISDN).Therefore, MME 505 is able to carry out institute in Fig. 2
Some embodiments of method 400 shown in the method 200 and Fig. 4 shown.
PGW 510 include be used for transmission and receive such as with MME 505 or external packet data networks (being not shown in Fig. 5)
The transceiver 555 of the signal of the signal of exchange.Transceiver 555 can be implemented as single integrated circuit (for example, using single ASIC
Or FPGA), or be embodied as including the system on chip (SOC) for realizing the disparate modules of the function of transceiver 555.PGW
510 further include processor 560 and memory 565.Processor 560 is used to execute the instruction being stored in memory 565 and will
Information is stored in memory 665 (result such as executed instruction).Some embodiments of memory 665 include data structure
570, data structure 570 includes can be by pairing (such as user of the user equipment of corresponding pairing identifier (TEID) index
The pairing of equipment 515,520).For example, pairing can be indicated by the globally unique identifier of user equipment.Therefore, 510 energy of PGW
Enough execute some embodiments of method 400 shown in method 200 shown in Fig. 2 and Fig. 4.
Fig. 6 is the figure of data structure 600 in accordance with some embodiments, and the instruction of data circle all 600 is for along around outer
The communication path of portion's packet data network carrys out the pairing of the user equipment of routing packets.Some embodiments of data structure 600 are used
In realization data structure 570 shown in fig. 5.Data structure 600 include field 605,610,615,620 (for the sake of clarity, by
Only one in each field of appended drawing reference instruction), these fields are used to store specific between mark different user devices
The pairing identifier of pairing, the interface of GTP interface such as associated with each user equipment, each user equipment TEID
The globally unique identifier of identifier and the user equipment of pairing.For example, field 605 includes that source user equipment and target are used
The pairing identifier (PAIR-1) of first pairing of family equipment.The user equipment of pairing interface (SOURCE INTERFACE-1,
TARGET INTERFACE-1) and TEID value identified in field 610,615 respectively.By matching associated source user equipment
With target UE by their globally unique identifier (SOURCE MSISDN-1, TARGET in corresponding field 620
MSISDN-2 it) identifies.Value in field 605,610,615,620 can according to fig. 2 shown in shown in method 200 or Fig. 4
The embodiment of method 400 created or modified.
In some embodiments, some aspects of above-mentioned technology can be by the one or more of the processing system of execution software
Processor is realized.Software includes storage or is otherwise tangibly embodied in non-transient computer readable storage medium
One or more executable instruction set.Software may include instruction and certain data, these instructions and certain data are by one
When a or multiple processors execute, one or more processors are manipulated to execute the one or more aspects of above-mentioned technology.It is non-temporary
State computer readable storage medium may include such as disk or optical disc memory apparatus, the solid storage device of such as flash memory, height
Speed caching, random access memory (RAM) or other non-volatile memory devices or equipment etc..Being stored in non-transient computer can
Read storage medium on executable instruction can be source code, assembler language code, object code or by one or more
Manage other instruction formats that device is explained or otherwise be can be performed.
Computer readable storage medium may include that may have access to during use from computer system with to computer system
Instruction and/or any storage medium or the storage medium combination of data are provided.Such storage medium can include but is not limited to
Optical medium (for example, CD (CD), digital versatile disc (DVD), Blu-ray Disc), magnetic medium are (for example, floppy disk, tape or magnetic
Property hard disk drive), it is volatile memory (for example, random access memory (RAM) or cache memory), non-volatile
Memory (for example, read-only memory (ROM) or flash memory) or the storage medium for being based on MEMS (MEMS).It is computer-readable
Storage medium can be embedded in computing system (for example, system RAM or ROM), be fixedly attached to computing system (for example, magnetic
Property hard disk drive), be removably attached to computing system (for example, CD or be based on universal serial bus (USB) flash memory),
Or it is coupled to computer system via wired or wireless network (for example, network-accessible storage (NAS)).
Note that and non-required above all activities or elements described in general description, it may not be necessary to specific activities
Or a part of equipment, and other one or more activities can be executed, or including in addition to those described elements it
Outer element.In addition, that lists that movable sequence is not necessarily them executes sequence.Moreover, being retouched by reference to specific embodiment
These concepts are stated.However, those skilled in the art will appreciate that, do not departing from this public affairs as set forth in the appended claims
In the case where the range opened, various modifications can be carried out and changes.Therefore, the description and the appended drawings should be considered to be it is illustrative and
Non-limiting sense, and all such modifications are intended to be included in the scope of the present disclosure.
Benefit, other advantages and solution to the problem are described about specific embodiment above.But benefit,
Advantage, solution to the problem and may cause any benefit, advantage or solution occur or what is become readily apparent from appoints
What feature is not construed as crucial, the required or essential feature of any or all claim.In addition, spy disclosed above
Determine embodiment to be merely illustrative, because disclosed theme can be aobvious to benefit from those skilled in the art of teachings herein
And the difference that is clear to but equivalent mode is modified and practiced.Other than describing in the following claims, for this
There is no limit for the details of construction or design shown in text.It will therefore be apparent that can change or modify and is disclosed above
Specific embodiment, and all these variations are considered in the range of disclosed theme.Therefore, the guarantor sought herein
Shield is as described in appended claims.
Claims (10)
1. a kind of method, comprising:
The uplink packet for being addressed to target UE is received from source user equipment in the first gateway of core network；
The pairing between the source user equipment and the target UE is identified in first gateway；And
It, will on the communication path around the external packet data networks for being connected to first gateway in first gateway
The received uplink packet is routed to the target UE.
2. according to the method described in claim 1, further include:
It is received from mobility management entity (MME) to use the source user equipment and the target in first gateway
The request that family equipment is matched；And
In response to receiving the request, the information of the pairing is indicated in first gateway storage.
3. according to the method described in claim 2, wherein receiving to the source user equipment and target UE progress
The request of pairing includes receiving uplink packet, the uplink packet include the source user equipment it is global only
The globally unique identifier of one identifier and the target UE, and wherein storage indicates the information of the pairing
Including storing the globally unique identifier and corresponding pairing identifier, and wherein identifying the pairing includes being based on being wrapped
The pairing identifier in the uplink packet is included to identify the pairing, and wherein by the uplink packet road
By including being accessed based on the pairing identifier being included in the uplink packet to the target UE
The globally unique identifier and based on the globally unique identifier of the target UE come by the uplink
Road grouping is routed to the target UE.
4. according to the method described in claim 1, the uplink packet is wherein routed to the target UE packet
It includes and is divided by the second gateway service via second gateway by the uplink in response to the determination target UE
Group is routed to the target UE.
5. a kind of method, comprising:
From source user equipment reception to by the source user equipment and target user at first movement management entity (MME)
The first request that equipment is matched；
From the MME to gateway transmission to ask the source user equipment and target UE matches second
It asks；And
Disappearing for the identifier including the pairing is transmitted from the MME to the source user equipment and the target UE
The identifier of breath, the pairing is received in response to second request from the gateway.
6. according to the method described in claim 5, wherein receiving first request includes receiving to set including the target user
First request of standby globally unique identifier, the method also includes:
In response to determining that the target UE is idle, pages the target user and sets based on the globally unique identifier
It is standby.
7. according to the method described in claim 6, it includes to will be described that wherein to page the target UE, which include transmission,
The paging message for the request that target UE and the source user equipment are matched.
8. according to the method described in claim 7, wherein transmitting the paging message includes in response to the determination target user
Equipment is serviced by the 2nd MME and transmits the paging message via the 2nd MME.
9. a kind of the first gateway to external packet data networks, comprising:
Transceiver, to receive the uplink packet for being addressed to target UE from source user equipment；And
Processor, to identify the pairing between the source user equipment and the target UE, and around described
The received uplink packet is routed to the target UE on the communication path of external packet data networks.
10. a kind of first movement management entity (MME), comprising:
Transceiver, for from source user equipment receive to the source user equipment and target UE are matched the
One request, to gateway transmission to request the source user equipment and target UE matches second, and
And the message of the identifier including the pairing is transmitted to the source user equipment and the target UE, the pairing
Identifier is received in response to second request from the gateway.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/258,463 US10172067B2 (en) | 2016-09-07 | 2016-09-07 | Bypassing external packet data networks in mobile-to-mobile communication |
| US15/258,463 | 2016-09-07 | ||
| PCT/US2017/050420 WO2018048996A1 (en) | 2016-09-07 | 2017-09-07 | Bypassing external packet data networks in mobile-to-mibile communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109691221A true CN109691221A (en) | 2019-04-26 |
| CN109691221B CN109691221B (en) | 2022-10-18 |
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| CN201780054509.6A Active CN109691221B (en) | 2016-09-07 | 2017-09-07 | Bypassing external packet data networks in mobile-to-mobile communications |
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| US (1) | US10172067B2 (en) |
| EP (1) | EP3510829B1 (en) |
| CN (1) | CN109691221B (en) |
| WO (1) | WO2018048996A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10956078B2 (en) | 2018-03-27 | 2021-03-23 | EMC IP Holding Company LLC | Storage system with loopback replication process providing object-dependent slice assignment |
| US10866969B2 (en) | 2018-03-28 | 2020-12-15 | EMC IP Holding Company LLC | Storage system with loopback replication process providing unique identifiers for collision-free object pairing |
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| WO2010121771A2 (en) * | 2009-04-20 | 2010-10-28 | Panasonic Corproation | Route optimization of a data path between communicating nodes using a route optimization agent |
| US20140146668A1 (en) * | 2012-11-23 | 2014-05-29 | Electronics And Telecommunications Research Institute | Apparatus of controlling data traffic in packet based mobile communication system and method thereof |
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| EP2876921A1 (en) * | 2013-11-22 | 2015-05-27 | General Dynamics C4 Systems, Inc. | Proxy pdn gateway |
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| US7003571B1 (en) * | 2000-01-31 | 2006-02-21 | Telecommunication Systems Corporation Of Maryland | System and method for re-directing requests from browsers for communication over non-IP based networks |
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| CN101472314B (en) * | 2007-11-02 | 2010-05-12 | 华为技术有限公司 | Method and equipment for processing data |
| US20100278345A1 (en) * | 2009-05-04 | 2010-11-04 | Thomas Matthieu Alsina | Method and apparatus for proximity based pairing of mobile devices |
| CA2758537A1 (en) | 2010-11-15 | 2012-05-15 | Douglas S. Jones | Quick heat-up gas infrared burner for air impingement ovens |
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2017
- 2017-09-07 CN CN201780054509.6A patent/CN109691221B/en active Active
- 2017-09-07 EP EP17772798.9A patent/EP3510829B1/en active Active
- 2017-09-07 WO PCT/US2017/050420 patent/WO2018048996A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010121771A2 (en) * | 2009-04-20 | 2010-10-28 | Panasonic Corproation | Route optimization of a data path between communicating nodes using a route optimization agent |
| US8831014B2 (en) * | 2009-09-26 | 2014-09-09 | Cisco Technology, Inc. | Providing services at a communication network edge |
| EP2787767A1 (en) * | 2012-01-05 | 2014-10-08 | ZTE Corporation | Local forwarding method and system for user plane data, and local gateway |
| US20140146668A1 (en) * | 2012-11-23 | 2014-05-29 | Electronics And Telecommunications Research Institute | Apparatus of controlling data traffic in packet based mobile communication system and method thereof |
| EP2876921A1 (en) * | 2013-11-22 | 2015-05-27 | General Dynamics C4 Systems, Inc. | Proxy pdn gateway |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3510829B1 (en) | 2022-01-26 |
| US10172067B2 (en) | 2019-01-01 |
| US20180070283A1 (en) | 2018-03-08 |
| CN109691221B (en) | 2022-10-18 |
| WO2018048996A1 (en) | 2018-03-15 |
| EP3510829A1 (en) | 2019-07-17 |
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